10 1/2”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Rolco was a trademark from Rolex, registered in 1927
• Beguelin is known to be a supplier of movements for Rolco
• Except for the bridge shapes this movement is identical to the Beguelin calibers 3, 4, 9 ,12 (see extra picture).
  The bridge shape shown here was exclusively designed für Rolco

• Listing ID: 14498
• Manufacturer / Brand: Beguelin
• Caliber: Rolco 10 1/2'''
• Size in French Lignes: 10 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, maybe around 1930
• Country: Switzerland
• Identification: See remarks above.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)